GR-91S4 is an ultra miniature 13 * 15 * 2.2 mm GPS module designed by low power consumption SiRFstarIV solution. It provides superior sensitivity up to -163dBm and fast Time-To-First-Fix in navigation application. The stable performance of GR-91S4 is your best choice to be embedded in your portable device design, like PDA、PND、mobile phone、Digital Camera for GPS service.

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SiRFstarIV GSD4e platform with SiRFaware GPS technology

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Full support for client-based and server-based SiRFInstantFix™

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Small form factor: 13* 15 * 2.2 mm

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RoHS/WEEE compliant

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High sensitivity navigation engine (PVT) tracks as low as -163dBm

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48 track verification channels

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Fast Position Fix

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Low power consumption

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Active Jammer Remover:

‧Removes in-band jammers up to 80 dB-Hz

‧Tracks up to 8 CW jammers

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Support SBAS(WAAS or EGNOS)